package HelpOther;

import java.util.Iterator;
import java.util.LinkedHashMap;

public class Test {
    public static void main(String[] args) {
        //EnumSet enumSet = EnumSet.noneOf(cl);
        LinkedHashMap map = new LinkedHashMap();
        map.put("hhh",123);
        map.put("444",233);
        map.put("555",234);
        map.put("777",223);
        Iterator iterator = map.keySet().iterator();
        while (iterator.hasNext()){
            System.out.println(iterator.next());
        }


    }
}
